Cities and towns: Philippines · 58
Listed places: 43 449.
- OmonPH · Bicol Region
- OmodPH · Central Visayas
- OmjonPH · Central Visayas
- OmioPH · Western Visayas
- OmidopPH · Bicol Region
- OmbaoPH · Bicol Region
- OmauasPH · Region VIII
- OmauasPH · Central Visayas
- OmapadPH · Central Visayas
- UmanodPH · Central Visayas
- OmandoPH · Ilocos
- OmambongPH · Western Visayas
- OmaloPH · Bicol Region
- OmaloPH · Bicol Region
- OmagitPH · Cordillera
- OlyaoyaoPH · Bicol Region
- OlutangaPH · Zamboanga Peninsula
- OluanganPH · Western Visayas
- OloybuayaPH · Central Luzon
- OlotayanPH · Western Visayas
- OlorgaPH · Mimaropa
- Olo-Olo NortePH · Ilocos
- Olo-oloPH · Calabarzon
- OlontanoPH · Calabarzon
- Olongtauo IlayaPH · Calabarzon
- OlongtaoPH · Calabarzon
- Olongapo CityPH · Central Luzon
- Ol-ogPH · Region VIII
- OlocPH · Western Visayas
- Olo-BarocPH · Western Visayas
- Olo CacamposanPH · Ilocos
- OloPH · Central Visayas
- OlmoPH · Western Visayas
- OllaoPH · Ilocos
- OllaPH · Calabarzon
- OlivoPH · Central Visayas
- OlituoPH · Ilocos
- OlisijanPH · Region VIII
- OlioegPH · Cagayan Valley
- OlinganPH · Cordillera
- OlinganPH · Zamboanga Peninsula
- OlympiaPH · National Capital Region
- OlimpiaPH · Central Visayas
- Hacienda OlimpoPH · Western Visayas
- OlimboPH · Central Visayas
- OlicastoPH · Calabarzon
- OlerasPH · Region VIII
- OleraPH · Region VIII
- OleaPH · Ilocos
- Old VerduPH · Caraga
- TolongPH · Central Visayas
- Old TarazonaPH · Western Visayas
- San PabloPH · Cagayan Valley
- Old San MarianoPH · Cagayan Valley
- Old San AgustinPH · Region VIII
- Old SalamanPH · Soccsksargen
- Old SagayPH · Western Visayas
- Old RizalPH · Region VIII
- PandanonPH · Western Visayas
- Old MoboPH · Bicol Region
- Old ManuncaPH · Region VIII
- Old MahayagPH · Region VIII
- Old KidapawanPH · Soccsksargen
- Old GumiadPH · Cagayan Valley
- Old CosinaPH · Northern Mindanao
- Old ClavijoPH · Caraga
- Old CentralPH · Ilocos
- OlayonPH · Davao Region
- OlayanPH · Region VIII
- OlayPH · Central Visayas
- OlavePH · Central Visayas
- OlasiPH · Mimaropa
- OlasPH · Bicol Region
- OlangoPH · Western Visayas
- OlangoPH · Central Visayas
- OlangPH · Central Visayas
- OlanenPH · Ilocos
- OlamianPH · Soccsksargen
- Olag PequenoPH · Bicol Region
- OkiotPH · Central Visayas
- OkayanPH · Mimaropa
- OintamboPH · Ilocos
- OhioPH · Region VIII
- OhaonPH · Region VIII
- OguisPH · Bicol Region
- OguisPH · Region VIII
- OguisPH · Central Visayas
- OgtongonPH · Western Visayas
- OgsipPH · Western Visayas
- OgongoPH · Calabarzon
- OgodPH · Bicol Region
- OgobPH · Bicol Region
- OgnasPH · Northern Mindanao
- OgbongPH · Bicol Region
- OgbonPH · Bicol Region
- OgbacPH · Mimaropa
- OgaoPH · Bicol Region
- OgaPH · Bicol Region
- Oeste - APH · Region VIII
- OemPH · Mimaropa
- O'DonnellPH · Central Luzon
- OdokPH · Caraga
- OdocPH · Bicol Region
- OdocPH · Region VIII
- OdocPH · Region VIII
- OdlumonPH · Central Visayas
- OdlotPH · Central Visayas
- OdionganPH · Mimaropa
- OdionganPH · Western Visayas
- OdionganPH · Western Visayas
- OdionganPH · Region VIII
- OdionganPH · Northern Mindanao
- OdiongPH · Mimaropa
- OdiongPH · Mimaropa
- OdiongPH · Western Visayas
- OdiongPH · Western Visayas
- OdiongPH · Region VIII
- OdiongPH · Western Visayas
- OdiongPH · Central Visayas
- OdiongPH · Central Visayas
- OdiongPH · Central Visayas
- OdiconPH · Bicol Region
- OdaloPH · Davao Region
- OdaPH · Ilocos
- OcopPH · Cordillera
- OcoyPH · Central Visayas
- OcoPH · Bicol Region
- OciniPH · Bicol Region
- OchanadoPH · Western Visayas
- OccidentalPH · Region VIII
- OcasionPH · Northern Mindanao
- OcañaPH · Central Visayas
- OcampoPH · Bicol Region
- Ocam OcamPH · Mimaropa
- ObuyonPH · Calabarzon
- ObujanPH · Central Visayas
- ObuhanPH · Central Visayas
- ObuhanPH · Central Visayas
- ObugPH · Ilocos
- ObuatPH · Cordillera
- ObreroPH · National Capital Region
- ObrevoPH · Region VIII
- ObreroPH · Davao Region
- OboyoboyPH · Ilocos
- OboobPH · Cordillera
- OboobPH · Calabarzon
- Obo-obPH · Region VIII
- OboobPH · Central Visayas
- ObongobongPH · Region VIII
- ObongPH · Ilocos
- ObongPH · Central Visayas
- UbolPH · Autonomous Region in Muslim Mindanao
- ObadPH · Cordillera
- OboPH · Bicol Region
- OboPH · Bicol Region
- UbaPH · Bicol Region
- OboPH · Central Visayas
- ObfalPH · Cordillera
- ObayanPH · Region VIII
- ObandoPH · Central Luzon
- ObanPH · Central Visayas
- ObaliwPH · Bicol Region
- ObaPH · Caraga
- DayanganPH · Cordillera
- OasPH · Bicol Region
- OaquingPH · Ilocos
- OaquiPH · Ilocos
- OalinPH · Ilocos
- DalaoPH · Soccsksargen
- Oaig DayaPH · Ilocos
- OacPH · Central Visayas
- OacPH · Central Visayas
- NuynuyinPH · Calabarzon
- NutolPH · Soccsksargen
- Nusa NusaPH · Autonomous Region in Muslim Mindanao
- NurunaguimPH · Autonomous Region in Muslim Mindanao
- NuroPH · Autonomous Region in Muslim Mindanao
- NuroPH · Autonomous Region in Muslim Mindanao
- NupulanPH · Zamboanga Peninsula
- NunuyanPH · Zamboanga Peninsula
- NununganPH · Cagayan Valley
- NununganPH · Northern Mindanao
- NunukanPH · Autonomous Region in Muslim Mindanao
- NunonganPH · Autonomous Region in Muslim Mindanao
- NunocanPH · Northern Mindanao
- NungawaPH · Cordillera
- NunangPH · Northern Mindanao
- Numero TresPH · Calabarzon
- Numero DosPH · Calabarzon
- NumeroPH · Calabarzon
- NumanganPH · Autonomous Region in Muslim Mindanao
- NumanciaPH · Western Visayas
- NolingPH · Soccsksargen
- NuitnuitPH · Autonomous Region in Muslim Mindanao
- NuglayanPH · Mimaropa
- NugbocPH · Bicol Region
- NugasPH · Central Visayas
- Nuevo UnionPH · Western Visayas
- Nuevo TrabajoPH · Caraga
- Nuevo SibagatPH · Caraga